CN104888573A - Device and method for promoting aggregation and growth of fine particulate matters - Google Patents
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- 238000004220 aggregation Methods 0.000 title claims description 6
- 239000010419 fine particle Substances 0.000 claims abstract description 33
- 238000005192 partition Methods 0.000 claims abstract description 19
- 238000009825 accumulation Methods 0.000 claims abstract description 10
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- 230000000694 effects Effects 0.000 claims description 2
- 239000013618 particulate matter Substances 0.000 description 10
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Abstract
本发明涉及一种促进微细颗粒物聚集长大的装置及方法，所述装置包括一两端敞口的壳体，所述壳体的两端开口分别作为气流进口和气流出口，在所述壳体的内壁间隔固定连接多个与来流平行的隔板，各所述隔板将所述壳体的内部分隔成多个相互平行的子通道，在每一所述子通道中设置有多组沿来流流向间隔布置的扰流叶片排，每一组所述扰流叶片排包括多个沿垂直于来流方向间隔布置的扰流叶片。
The invention relates to a device and method for promoting the accumulation and growth of fine particles. The device includes a shell with two ends open, and the openings at both ends of the shell are respectively used as an airflow inlet and an airflow outlet. The inner wall of the inner wall is fixedly connected with a plurality of partitions parallel to the incoming flow, and each partition divides the interior of the housing into a plurality of sub-channels parallel to each other, and each sub-channel is provided with a plurality of sets of The incoming flow is directed toward rows of spoiler blades arranged at intervals, and each group of said row of spoiler blades includes a plurality of spoiler blades arranged at intervals along a direction perpendicular to the direction of incoming flow.
Description
技术领域technical field
本发明涉及一种促进微细颗粒物聚集长大的装置及方法，属于环保设备技术领域。The invention relates to a device and method for promoting the accumulation and growth of fine particles, belonging to the technical field of environmental protection equipment.
背景技术Background technique
工业燃烧产生的烟尘是大气中细颗粒物的主要来源，而燃煤电站锅炉又是其中最重要贡献者之一。由于微米特别是亚微米颗粒物容易被人体吸入且富集有毒化合物，世界各国政府已经制定并不断更新严厉的法律标准，控制直径少于10个微米的颗粒物(PM10)向大气的排放。考虑到对人体的危害，各国政府特别关注动力学直径小于等于2.5个微米(或称PM2.5)的颗粒物的排放。除直接对人体造成伤害外，微细颗粒也是造成大气能见度低的主要空气污染物之一。大气的不透明度主要取决于排放物中细颗粒物的多少，因为光线的消光系数在波长接近于0.1μm和1.0μm附近时达到峰值。Smoke and dust produced by industrial combustion is the main source of fine particulate matter in the atmosphere, and coal-fired power plant boilers are one of the most important contributors. Since micron, especially submicron particles are easily inhaled by the human body and enriched in toxic compounds, governments around the world have formulated and continuously updated strict legal standards to control the emission of particulate matter (PM10) with a diameter of less than 10 microns to the atmosphere. Considering the harm to the human body, the governments of various countries pay special attention to the emission of particulate matter with a kinetic diameter less than or equal to 2.5 microns (or PM2.5). In addition to directly causing harm to the human body, fine particles are also one of the main air pollutants that cause low visibility in the atmosphere. The opacity of the atmosphere depends mainly on the amount of fine particles in the emissions, since the extinction coefficient of light peaks at wavelengths near 0.1 μm and 1.0 μm.
在工业生产中，各种不同的除尘方法和装置被用于去除气流中携带的飞灰或颗粒物。但是，一般而言，这些除尘装置对于拦截PM2.5均具有很大的局限性。如静电除尘器，很适合把较大的粒子从气流中移除，但对于PM2.5和更细小的亚微米颗粒物的过滤效率相当低。又如布袋除尘器，可以在不断增加布袋层数的条件下非常有效地拦截PM2.5，但同时也不断增加了烟道的阻力，另外布袋除尘装置还需定期清灰，并且对于湿度较高的烟气极易糊袋。随着燃烧烟气中颗粒物污染排放标准越来越严格，原有除尘装置的除尘能力已达极限，致使许多情况下无法达到排放标准。因此，在当前追求燃煤锅炉的燃烧烟气超低甚至超净排放的要求下，亟需一种高效低成本的除尘装置。In industrial production, various dedusting methods and devices are used to remove fly ash or particulate matter carried in the air stream. However, generally speaking, these dust removal devices have great limitations in intercepting PM2.5. Electrostatic precipitators, for example, are great for removing larger particles from the airflow, but are quite inefficient for PM2.5 and finer submicron particles. Another example is the bag filter, which can effectively intercept PM2.5 under the condition of continuously increasing the number of bag layers, but at the same time, it also continuously increases the resistance of the flue. In addition, the bag filter needs to be cleaned regularly, and it is not suitable for high humidity. The smoke is very easy to paste the bag. With the emission standards of particulate matter pollution in combustion flue gas becoming more and more stringent, the dust removal capacity of the original dust removal device has reached the limit, resulting in the failure to meet the emission standards in many cases. Therefore, in the current pursuit of ultra-low or even ultra-clean emissions of combustion flue gas from coal-fired boilers, a high-efficiency and low-cost dust removal device is urgently needed.
发明内容Contents of the invention
针对上述问题，本发明的一个目的是提供一种促进微细颗粒物聚集长大的装置。In view of the above problems, an object of the present invention is to provide a device for promoting the aggregation and growth of fine particles.
为实现上述目的，本发明采用以下技术方案：一种促进微细颗粒物聚集长大的装置，其特征在于：它包括一两端敞口的壳体，所述壳体的两端开口分别作为气流进口和气流出口，在所述壳体的内壁间隔固定连接多个与来流平行的隔板，各所述隔板将所述壳体的内部分隔成多个相互平行的子通道，在每一所述子通道中设置有多组沿来流流向间隔布置的扰流叶片排，每一组所述扰流叶片排包括多个沿垂直于来流方向间隔布置的扰流叶片。In order to achieve the above object, the present invention adopts the following technical solutions: a device for promoting the accumulation and growth of fine particles, which is characterized in that it includes a shell with two ends open, and the two ends of the shell are respectively used as air inlets and the air outlet, a plurality of baffles parallel to the incoming flow are fixedly connected at intervals on the inner wall of the housing, and each of the baffles divides the interior of the housing into a plurality of sub-channels parallel to each other. The sub-channels are provided with multiple groups of spoiler blade rows arranged at intervals along the direction of the incoming flow, and each group of the row of spoiler blades includes a plurality of rows of spoiler blades arranged at intervals along the direction perpendicular to the incoming flow.
位于每一子通道内的各组所述扰流叶片排分布于所述子通道的同一侧。Each set of spoiler blade rows in each sub-channel is distributed on the same side of the sub-channel.
位于每一子通道内的各组所述扰流叶片排交错分布于所述子通道的两侧。Each set of spoiler vane rows located in each sub-channel is distributed on both sides of the sub-channel in a staggered manner.
在靠近所述壳体的气流出口处设置有多个均流叶片。A plurality of flow equalizing vanes are arranged near the airflow outlet of the housing.
所述均流叶片采用对称流线形叶片。The flow equalizing blades adopt symmetrical streamlined blades.
所述扰流叶片为三角形、瓦片形、楔形、菱形、“S”形、“Z”形、矩形、椭圆形和流线形中的一种或多种组合。The spoiler blade is one or more combinations of triangle, tile shape, wedge shape, diamond shape, "S" shape, "Z" shape, rectangle, ellipse and streamline shape.
本发明的另一个目的是提供一种促进微细颗粒物聚集长大的方法。Another object of the present invention is to provide a method for promoting the aggregation and growth of fine particles.
为实现上述目的，本发明采用以下技术方案：一种促进微细颗粒物聚集长大的方法，包括以下步骤：1)在一个呈两端敞口的筒状的壳体内平行设置多个隔板，各隔板将壳体内部空间分隔成多个子通道，在每一子通道的一侧或两侧沿来流方向间隔设置有多组扰流叶片，每一组扰流叶片排包括多个沿垂直于来流方向间隔布置的扰流叶片；2)来流从壳体的气流进口后被导入各个子通道，被导入每一子通道的携带粉尘粒子的来流流过扰流叶片，在每一扰流叶片的上游会产生漩涡、下游会产生回流区和漩涡，因此每一个子通道将拥有数目巨大的漩涡流体团和回流区，这些漩涡流体团和回流区将细小的颗粒卷吸、夹带其中一起流动掠过隔板壁面和扰流叶片下游背面，在这些固体壁面上形成有大量细小颗粒物存在的流动边界层，大大提高了细小颗粒物之间以及它们与隔板壁面、扰流叶片背面的发生相互作用的机会，极其重要的是临近壁面的流动速度几乎为零，使细小的亚微米颗粒物在液桥力、静电力、范德华分子力等作用下迅速吸附在固体壁面，相互聚集成块，直到受非稳态的流动扰动和外来震动的作用脱落，最终以“大颗粒”或“大块”的形式被气流卷吸携带脱离本发明所述的装置；3)由上游流向扰流叶片的大颗粒难以被叶片上下游的漩涡和背面下游的回流卷吸，大颗粒将直接穿越漩涡团和尾流区，增加了大颗粒与微细颗粒之间发生相互作用的机会，使微细的亚微米颗粒物在静电力、范德华分子力和液桥力的作用下迅速粘附在较大颗粒上并一起被气流携带向下游输运脱离上述装置。In order to achieve the above object, the present invention adopts the following technical solutions: a method for promoting the accumulation and growth of fine particles, comprising the following steps: 1) a plurality of partitions are arranged in parallel in a cylindrical shell that is open at both ends, each The partition divides the inner space of the housing into a plurality of sub-channels. On one or both sides of each sub-channel, a plurality of sets of turbulence blades are arranged at intervals along the incoming flow direction. Each set of turbulence blade rows includes a plurality of The turbulence vanes arranged at intervals in the incoming flow direction; 2) The incoming flow is introduced into each sub-channel from the air inlet of the casing, and the incoming flow carrying dust particles introduced into each sub-channel flows through the turbulent flow blades, and in each turbulent The upstream of the flow blade will generate a vortex, and the downstream will generate a recirculation zone and a vortex, so each sub-channel will have a large number of vortex fluid clusters and recirculation zones, and these vortex fluid clusters and recirculation zones will entrain and entrain fine particles. The flow sweeps over the wall of the partition and the back of the downstream of the spoiler blade, and a flow boundary layer with a large number of fine particles is formed on these solid walls, which greatly improves the interaction between the fine particles and the wall of the partition and the back of the spoiler blade. The most important thing is that the flow velocity near the wall is almost zero, so that the fine submicron particles are quickly adsorbed on the solid wall under the action of liquid bridge force, electrostatic force, van der Waals molecular force, etc., and aggregate into blocks until they are subjected to Unsteady flow disturbance and the effect of external vibration come off, and finally be entrained by the airflow in the form of "big particles" or "big pieces" to break away from the device of the present invention; 3) large particles flowing from upstream to spoiler blades It is difficult to be entrained by the vortex upstream and downstream of the blade and the backflow downstream of the back. Large particles will directly pass through the vortex and wake area, increasing the chance of interaction between large particles and fine particles, so that fine submicron particles Under the action of electric power, van der Waals molecular force and liquid bridge force, they quickly adhere to the larger particles and are carried by the airflow and transported downstream to leave the above-mentioned device.
本发明由于采取以上技术方案，其具有以下优点：1、本发明由于在壳体中设置有多个相互平行的隔板，隔板将壳体分隔成多个通道，每一通道中设置有多组扰流叶片排，因此在每一个扰流叶片在气流中都制造不同强度的回流与涡旋区，使其携带细小颗粒物与固体壁面碰撞接触、吸附聚集并长大脱落，使气流中携带的颗粒物更容易在其后被过滤或以其他方式移除，本发明对于超细颗粒物尤其有效。2、本发明的扰流叶片的放置角度、形状、大小及相互之间的位置关系可以根据用户对通道压力损失和提高下游除尘装置效率的要求、来流粉尘浓度、粒径分布的变化而进行调整和优化确定，因此，具有不同的流体力学特性，以便适应工业中不同用途的需要，具有很强的可控性。3、本发明装置一般设置在工业过程下游已有的除尘装置之前，不仅能够帮助高效地去除超细颗粒物，而且能够使操作者不用改变原来除尘装置的运行程序，解决比如将静电除尘器更换成布袋除尘装置后带来的一系列运行程序变化的问题。4、本发明结构简单，操作方便，不仅可以应用在工业燃烧特别是电厂锅炉燃烧的烟气排放除尘过程中，而且也可用于粉粒体输运、搅拌过程的所有除尘工业中，目的是大大提高原有除尘装置拦截细颗粒物PM2.5的能力，在不同条件下降低50-90％以上的烟尘排放浓度。The present invention has the following advantages due to the adoption of the above technical scheme: 1. The present invention is provided with a plurality of partitions parallel to each other in the casing, and the partition divides the casing into multiple passages, and multiple partitions are arranged in each passage. A group of spoiler blade rows, so each spoiler blade creates different intensities of backflow and vortex areas in the airflow, making it carry fine particles to collide with the solid wall, adsorb and gather, grow up and fall off, so that the particles carried in the airflow Particulate matter is more easily filtered or otherwise removed thereafter, and the invention is particularly effective with ultrafine particulate matter. 2. The placement angle, shape, size and mutual positional relationship of the turbulent blades of the present invention can be adjusted according to the user's requirements for channel pressure loss and improving the efficiency of the downstream dust removal device, as well as changes in the incoming dust concentration and particle size distribution. Adjustment and optimization are determined, therefore, to have different hydrodynamic properties in order to adapt to the needs of different uses in industry, with strong controllability. 3. The device of the present invention is generally installed before the existing dust removal device in the downstream of the industrial process, which can not only help to remove ultrafine particles efficiently, but also enable the operator to solve the problem of replacing the electrostatic precipitator with A series of operating program changes after the bag dust removal device. 4. The present invention is simple in structure and easy to operate. It can not only be applied in the dust removal process of industrial combustion, especially in the flue gas emission of boiler combustion in power plants, but also in all dust removal industries in the process of powder transportation and mixing. The purpose is to greatly Improve the ability of the original dust removal device to intercept fine particulate matter PM2.5, and reduce the emission concentration of smoke and dust by more than 50-90% under different conditions.
附图说明Description of drawings
图1是本发明的整体结构示意图；Fig. 1 is the overall structure schematic diagram of the present invention;
图2是本发明扰流叶片的结构示意图；Fig. 2 is the structural representation of spoiler vane of the present invention;
图3是本发明均流叶片的结构示意图；Fig. 3 is a schematic structural view of the flow equalizing vane of the present invention;
图4是本发明子通道内的流动示意图；Fig. 4 is a flow schematic diagram in the sub-channel of the present invention;
图5是气流和颗粒在叶片作用下的空气动力学运动示意图。Figure 5 is a schematic diagram of the aerodynamic movement of airflow and particles under the action of blades.
具体实施方式Detailed ways
下面结合附图和实施例对本发明进行详细的描述。The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
本发明提出了一种促进微细颗粒物聚集长大的装置，如图1所示，其包括一两端敞口的壳体1，壳体1的两端开口分别作为气流进口和气流出口，在壳体1的内壁间隔固定连接多个与来流平行的隔板2，各隔板2将壳体1的内部分隔成多个相互平行的子通道3，在每一子通道3的一侧或两侧的设置有多组沿来流方向间隔分布的扰流叶片排4，每一组扰流叶片排包括多个沿垂直于来流方向间隔布置的扰流叶片5。The present invention proposes a device for promoting the accumulation and growth of fine particles. As shown in Figure 1, it includes a shell 1 with two ends open, and the openings at both ends of the shell 1 are respectively used as air inlet and air outlet. The inner wall of the body 1 is fixedly connected with a plurality of partitions 2 parallel to the incoming flow at intervals, and each partition 2 divides the inside of the housing 1 into a plurality of sub-channels 3 parallel to each other, and on one side or both sides of each sub-channel 3 The side is provided with multiple sets of spoiler vane rows 4 spaced apart along the incoming flow direction, and each set of spoiler vane rows includes a plurality of spoiler vanes 5 spaced apart along the direction of incoming flow.
在一个优选的实施例中，当扰流叶片排4设置在子通道3的两侧时，位于子通道3一侧的扰流叶片排4与位于子通道3另一侧的扰流叶片排4呈交错布置。In a preferred embodiment, when the row of spoiler blades 4 is arranged on both sides of the sub-passage 3, the row of spoiler blades 4 on one side of the sub-passage 3 and the row of spoiler blades 4 on the other side of the sub-passage 3 In a staggered arrangement.
在一个优选的实施例中，在靠近壳体1的气流出口处设置有多个均流叶片6，每一均流叶片6可采用对称流线形叶片(如图2所示)，设置均流叶片6的目的是使携带粉尘的气流在出口处流速均匀。In a preferred embodiment, a plurality of equalizing blades 6 are arranged near the air outlet of the housing 1, and each equalizing vane 6 can adopt a symmetrical streamlined blade (as shown in FIG. 2 ). The purpose of the vanes 6 is to make the airflow carrying the dust uniform in velocity at the outlet.
在一个优选的实施例中，扰流叶片5为三角形、瓦片形、楔形、菱形、“S”形(如图3所示)、“Z”形、矩形、椭圆形和流线形中的一种或多种组合；扰流叶片5的边缘形状可以是规则的直边或单凹槽锯齿状，也可以是不规则的多凹槽锯齿状。In a preferred embodiment, the spoiler vanes 5 are triangular, tile-shaped, wedge-shaped, diamond-shaped, "S"-shaped (as shown in Figure 3), "Z"-shaped, rectangular, elliptical and streamlined. One or more combinations; the edge shape of the spoiler blade 5 can be a regular straight edge or a single-groove serrated shape, or an irregular multi-groove serrated shape.
本发明还提出了一种促进微细颗粒物聚集长大的方法，包括以下步骤：The present invention also proposes a method for promoting the aggregation and growth of fine particles, comprising the following steps:
1)在一个呈两端敞口的筒状的壳体1内平行设置多个隔板2，各隔板将壳体内部空间分隔成多个子通道3，在每一子通道3的一侧或两侧沿来流方向间隔设置有多组扰流叶片排4，每一组扰流叶片排4包括多个沿垂直于来流方向间隔布置的扰流叶片5。1) A plurality of partitions 2 are arranged in parallel in a cylindrical casing 1 with both ends open, and each partition divides the internal space of the casing into a plurality of sub-channels 3 , and on one side of each sub-channel 3 or Multiple groups of spoiler blade rows 4 are arranged at intervals along the incoming flow direction on both sides, and each group of spoiler blade rows 4 includes a plurality of spoiler blades 5 arranged at intervals along the direction perpendicular to the incoming flow direction.
2)来流从壳体1的气流进口后被导入各个子通道3，如图4、图5所示，被导入每一子通道3的携带粉尘粒子的来流流过扰流叶片5，在每一扰流叶片5的上游会产生漩涡7、下游会产生回流区8和漩涡7，所以，每一个子通道3将拥有数目巨大的漩涡流体团和回流区8，它们将细小的颗粒卷吸、夹带其中一起流动掠过隔板2壁面和扰流叶片5下游背面，在这些固体壁面上形成有大量细小颗粒物存在的流动边界层，大大提高了细小颗粒物之间以及它们与隔板2壁面、扰流叶片5背面的发生相互作用的机会，极其重要的是临近壁面的流动速度几乎为零，使细小的亚微米颗粒物在液桥力、静电力、范德华分子力等作用下迅速吸附在固体壁面，相互聚集成块，直到受非稳态的流动扰动和外来震动的作用脱落，最终以“大颗粒”或“大块”的形式被气流卷吸携带脱离本发明所述的装置，外来流动扰动包括上游来流穿越扰流叶片5之间形成的狭缝射流和下游尾流中回流的强力冲击。2) The incoming flow is introduced into each sub-channel 3 from the air inlet of the casing 1, as shown in Fig. 4 and Fig. 5, the incoming flow carrying dust particles introduced into each sub-channel 3 flows through the spoiler blade 5, and The upstream of each spoiler blade 5 will produce a vortex 7, and the downstream will produce a recirculation zone 8 and a vortex 7, so each sub-channel 3 will have a large number of vortex fluid groups and a recirculation zone 8, which will entrain fine particles , entrainment wherein flows and skims the back side of partition 2 wall and spoiler vane 5 downstream together, forms the flow boundary layer that a large amount of fine particles exist on these solid wall surfaces, has improved greatly between fine particle and them and partition 2 wall, The chance of interaction on the back of the spoiler blade 5 is extremely important that the flow velocity near the wall is almost zero, so that the fine submicron particles are quickly adsorbed on the solid wall under the action of liquid bridge force, electrostatic force, van der Waals molecular force, etc. , gather together into blocks until they fall off under the action of unsteady flow disturbance and external vibration, and finally in the form of "large particles" or "large blocks" are entrained by the airflow to leave the device of the present invention, and the external flow disturbance It includes the strong impact of the upstream incoming flow passing through the slit jet formed between the spoiler blades 5 and the backflow in the downstream wake.
3)如图5所示，由上游流向扰流叶片的大颗粒难以被叶片上下游的漩涡和背面下游的回流卷吸，大颗粒将直接穿越漩涡团和尾流区，增加了大颗粒与微细颗粒之间发生相互作用的机会，使微细的亚微米颗粒物在静电力、范德华分子力(当烟气温度在100℃以上常压时)或在液桥力、静电力、范德华分子力(当烟气温度在100℃以下常压时)的作用下迅速粘附在较大颗粒上并一起被气流携带向下游输运脱离上述装置。3) As shown in Figure 5, the large particles flowing from the upstream to the spoiler blade are difficult to be entrained by the vortex upstream and downstream of the blade and the backflow downstream downstream, and the large particles will directly pass through the vortex and wake area, increasing the number of large particles and fine The chance of interaction between particles makes the fine submicron particles under the electrostatic force, van der Waals molecular force (when the temperature of the flue gas is above 100 ℃ normal pressure) or in the liquid bridge force, electrostatic force, van der Waals molecular force (when the smoke Under the action of air temperature below 100°C and normal pressure), they quickly adhere to larger particles and are carried by the air flow to transport downstream and leave the above-mentioned device.
综上所述，使用本发明所述的装置及方法能使烟气中大部分的微细颗粒物通过与固体壁面接触自身长大成块、然后受外力作用脱落，也可以使许多微细颗粒物吸附在大颗粒表面成为后者的一部分并随之往下游迁移，从而配合下游除尘设备在捕集或者拦截原始大颗粒物的同时也一起去除了烟气中的原始微细颗粒物。In summary, using the device and method described in the present invention can make most of the fine particles in the flue gas grow into blocks by contacting the solid wall surface, and then fall off under the action of external force, and can also make many fine particles adsorb on the large particles. The surface becomes part of the latter and then migrates downstream, so as to cooperate with the downstream dust removal equipment to capture or intercept the original large particles and remove the original fine particles in the flue gas.
上述过程中，不同颗粒之间发生相互作用是指颗粒物碰撞、接触或靠得足够近而导致的吸附、凝结、催化和甚至化学反应等多种作用；颗粒物与固体壁面的作用是指颗粒物碰撞、接触或靠得足够近而导致的细颗粒物吸附、凝结到固体表面上。In the above process, the interaction between different particles refers to the adsorption, condensation, catalysis and even chemical reactions caused by particle collision, contact or close enough; the interaction between particles and solid walls refers to the particle collision, Adsorption and condensation of fine particles onto solid surfaces due to contact or close enough proximity.
工业中，烟道内的颗粒物在输运过程中，烟气流动时的阻力或压降越小越好，而本发明所述装置上游气流的来流速度可随着上游设备(例如动力设备、冶炼设备等)的功率的变化而变化。因此，如果采用不可调节的粉粒体处理装置，气流经过它的压力损失和除尘效率无法平衡到最佳。本发明装置可根据上游设备功率的变化，来流气体的流速和方向等进行调整(调整扰流叶片5的形状、尺寸、放置角度、间隔距离等从而调整产生的漩涡尺寸、回流区尺度等)，使粉粒体处理装置的运行效益最佳状态。In the industry, during the transportation of particulate matter in the flue, the resistance or pressure drop when the flue gas flows is as small as possible, and the incoming flow velocity of the upstream airflow of the device according to the present invention can increase with the upstream equipment (such as power equipment, smelting, etc.) equipment, etc.) changes in power. Therefore, if a non-adjustable powder processing device is used, the pressure loss and dust removal efficiency of the air flow passing through it cannot be balanced to the best. The device of the present invention can be adjusted according to the change of the power of the upstream equipment, the flow velocity and direction of the incoming gas (adjust the shape, size, placement angle, spacing distance, etc. of the turbulent vane 5 to adjust the generated vortex size, the scale of the recirculation area, etc.) , so that the operating efficiency of the powder and granular processing device is in the best state.
本发明仅以上述实施例进行说明，各部件的结构、设置位置及其连接都是可以有所变化的，在本发明技术方案的基础上，凡根据本发明原理对个别部件进行的改进和等同变换，均不应排除在本发明的保护范围之外。The present invention is only described with the above-mentioned embodiment, and the structure, setting position and connection of each component can be changed. On the basis of the technical solution of the present invention, all improvements and equivalents to individual components according to the principles of the present invention Any transformation shall not be excluded from the protection scope of the present invention.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855045A (en) * | 2016-05-20 | 2016-08-17 | 武汉大学 | Ultrafine particle coagulating device adopting adjustable vortex production by means of turbulence |
| CN106512633A (en) * | 2016-12-19 | 2017-03-22 | 青岛大学 | Turbulent flow and chemical agglomeration coupling fine particle agglomeration device |
| CN106966173A (en) * | 2017-06-02 | 2017-07-21 | 江苏理工学院 | A kind of autoexcitation air particles conveying device |
| CN107854949A (en) * | 2017-12-14 | 2018-03-30 | 俞小林 | A kind of poly- dirt facility of electrostatic |
| CN108067473A (en) * | 2016-11-11 | 2018-05-25 | 丰田自动车株式会社 | Bleed type cleaning device |
| CN109364678A (en) * | 2018-12-26 | 2019-02-22 | 宁波大红鹰学院 | A device for promoting the agglomeration of ultrafine particles in coal-fired flue gas |
| CN110538518A (en) * | 2018-05-29 | 2019-12-06 | 北京大学 | A device and method for promoting combined removal of fine dust and mercury in airflow |
| CN112843973A (en) * | 2021-03-03 | 2021-05-28 | 武汉利康能源有限公司 | Fine dust coalescence device |
| CN112973368A (en) * | 2021-03-03 | 2021-06-18 | 武汉利康能源有限公司 | Dust-containing airflow rectifying and stabilizing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63221823A (en) * | 1987-03-10 | 1988-09-14 | Toyota Motor Corp | Dust capturing method and its device |
| CA2223999A1 (en) * | 1995-06-07 | 1996-12-19 | David E. Hyatt | Method for removing undesired particles from gas |
| CN1780682A (en) * | 2003-04-28 | 2006-05-31 | 因迪格技术集团股份有限公司 | Method and apparatus for mixing fluids for particle agglomeration |
| CN101780361A (en) * | 2010-01-05 | 2010-07-21 | 浙江菲达环保科技股份有限公司 | Method and device for prompting aggregation of particles |
| CN201643931U (en) * | 2010-05-07 | 2010-11-24 | 牛世洲 | Fine particulate coalescence device |
| CN204735084U (en) * | 2015-05-27 | 2015-11-04 | 米建春 | Promote little fine particles to gather device of growing up |
-
2015
- 2015-05-27 CN CN201510278522.2A patent/CN104888573B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63221823A (en) * | 1987-03-10 | 1988-09-14 | Toyota Motor Corp | Dust capturing method and its device |
| CA2223999A1 (en) * | 1995-06-07 | 1996-12-19 | David E. Hyatt | Method for removing undesired particles from gas |
| CN1780682A (en) * | 2003-04-28 | 2006-05-31 | 因迪格技术集团股份有限公司 | Method and apparatus for mixing fluids for particle agglomeration |
| CN101780361A (en) * | 2010-01-05 | 2010-07-21 | 浙江菲达环保科技股份有限公司 | Method and device for prompting aggregation of particles |
| CN201643931U (en) * | 2010-05-07 | 2010-11-24 | 牛世洲 | Fine particulate coalescence device |
| CN204735084U (en) * | 2015-05-27 | 2015-11-04 | 米建春 | Promote little fine particles to gather device of growing up |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855045A (en) * | 2016-05-20 | 2016-08-17 | 武汉大学 | Ultrafine particle coagulating device adopting adjustable vortex production by means of turbulence |
| CN108067473A (en) * | 2016-11-11 | 2018-05-25 | 丰田自动车株式会社 | Bleed type cleaning device |
| CN106512633A (en) * | 2016-12-19 | 2017-03-22 | 青岛大学 | Turbulent flow and chemical agglomeration coupling fine particle agglomeration device |
| CN106512633B (en) * | 2016-12-19 | 2019-07-30 | 青岛大学 | Turbulent flow and chemical agglomeration couple fine grained agglomeration device |
| CN106966173B (en) * | 2017-06-02 | 2019-03-19 | 江苏理工学院 | A kind of autoexcitation air particles conveying device |
| CN106966173A (en) * | 2017-06-02 | 2017-07-21 | 江苏理工学院 | A kind of autoexcitation air particles conveying device |
| CN107854949A (en) * | 2017-12-14 | 2018-03-30 | 俞小林 | A kind of poly- dirt facility of electrostatic |
| CN110538518A (en) * | 2018-05-29 | 2019-12-06 | 北京大学 | A device and method for promoting combined removal of fine dust and mercury in airflow |
| CN109364678A (en) * | 2018-12-26 | 2019-02-22 | 宁波大红鹰学院 | A device for promoting the agglomeration of ultrafine particles in coal-fired flue gas |
| CN109364678B (en) * | 2018-12-26 | 2021-06-25 | 宁波大红鹰学院 | A device for promoting the agglomeration of ultrafine particles in coal-fired flue gas |
| CN112843973A (en) * | 2021-03-03 | 2021-05-28 | 武汉利康能源有限公司 | Fine dust coalescence device |
| CN112973368A (en) * | 2021-03-03 | 2021-06-18 | 武汉利康能源有限公司 | Dust-containing airflow rectifying and stabilizing device |
| CN112973368B (en) * | 2021-03-03 | 2024-05-24 | 武汉利康能源有限公司 | Dust-containing airflow rectifying and stabilizing device |
| CN112843973B (en) * | 2021-03-03 | 2024-06-11 | 武汉利康能源有限公司 | Dust particle coalescence device |
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